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Let S={1,,2,34} . The total number of un...

Let `S={1,,2,34}` . The total number of unordered pairs of disjoint subsets of `S` is equal a.`25` b. `34` c. `42` d. `41`

A

one- one and onto

B

neither one-one nor onto

C

one-one but not onto

D

onto but not one-one

Text Solution

Verified by Experts

The correct Answer is:
D
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